20 TOR! 



wall spirally 



[or with alternatini!; 

 an.l .lark brown. I 1 'iiill. 



rin I '// />'. 



: T. C>" Kim., are 



p-.oihly tin- smie, lint the 



:; . : 



rnamcnted with white and 

 :i Spots. 



KXE8TRATA. Hinds. Tl. 6, OgS. 100, 1. 



Jitly convex: whorls u-ranular. louiritudi- 



njili ' -ate :inl ril)ln'(l, the three rilis jd.ont 



are cliannele<l ; luisc ronn.le(l, 



granular; ninlili-u^ wide, margin many c-renulated, uinhilical 



:ire r<Min<l, nearly continu-uis. 



10 mill. 



New GH 



type of this species was a dead shell, 

 with \ id.-ntly, had l>een Ivin-j; in the mud for 



<\ perhaps the cancellation is somewhat 

 mot' i;iy be looked for in living specimens. 



Is. ri. n. r,.,rs. -j. 



wh-.rls grann >p, roundel lelo\v, 



Mineled a Mi-it iidinally >triatod. spirally 



it- and : :-il>hery and that below it 



Cl > ' -red hands 

 nd heluw the periphery and 

 iMihilicu- :h white crenulat 



umhilieal wall of a choc -ture 



mill. 



New G> 



t.CA !igS. 4, 5. 



whorls spirally si: 1 tuhermlar m-ar 



in the middlr, periphery l.mad. 



with two tui iftcoas, shining ; base rounded 



